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Finding the Fourth Proportional to 349,206.93, 481,908.73 and 211,389.03

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Solution

The fourth proportional to 349,206.93, 481,908.73 and 211,389.03 is: 291,718.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    349,206.93 : 481,908.73 = 211,389.03 : x
  2. Step 2: Convert to fraction form
    349,206.93/481,908.73 = 211,389.03/x
  3. Step 3: Cross multiply
    349,206.93x = 481,908.73 × 211,389.03
  4. Step 4: Simplify right side
    349,206.93x = 101,870,218,983.23
  5. Step 5: Solve for x
    x = 101,870,218,983.23/349,206.93
  6. Step 6: Final answer
    x = 291,718.78

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.